Lenzburg Flag

Lenzburg

County Seat:
No
Area (mi²):
1.155
State:
Illinois

Lenzburg is a village located in St. Clair County, Illinois. Lenzburg has a 2026 population of 448. Lenzburg is currently declining at a rate of -0.67% annually and its population has decreased by -3.66% since the most recent census, which recorded a population of 465 in 2020.

448
Total Population
388
Density (mi²)
-3 -0.67%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)